Direct answer
For the LG WashTower WKEX300H washer section, do not force the door; most controls keep it locked while water, heat or motion is detected. First, wait for motion to stop, run Drain/Spin and allow the documented release delay.
What this covers
- LG WashTower WKEX300H washer section (WKEX300H*)
- WashTower model with center controls; confirm washer versus dryer status.
- The specific fault this record addresses: door or lid will not unlock
What it does not cover
- ×The same symptom on a different LG product line, which has its own record and its own cited source
- ×An on-screen error code whose meaning has not been checked against this exact model's manual
- ×Live electrical, gas, sealed-system, internal battery-cell or structural repair — a technician boundary, not a self-service step
Differential
What actually causes this, and how to tell them apart
These are ordered by how often each one is the answer, not by how easy it is to try. The point of the middle column is that two causes producing the same headline symptom rarely produce the same detail — that detail is what tells you which one you have before you change anything.
- 1
Water is still in the tub
What separates it Water is visible through the door or in the tub, and the machine will not release. On a front-load washer the water level sits above the door opening, so unlocking would empty the tub onto the floor.
How to confirm Run Drain/Spin and let it complete. The lock normally releases within a short documented delay after the tub empties.
- 2
The documented release delay has not elapsed
What separates it The cycle has ended and the tub is empty, but the door still holds for a period afterward. Many machines hold the lock for one to three minutes after the drum stops.
How to confirm Wait the full delay the manual specifies before treating it as a fault.
- 3
The drum is still coasting after a high-speed spin
What separates it The cycle appears finished but the drum is still turning when viewed through the door.
How to confirm Wait for the drum to come to a complete stop — the lock will not release while it is moving.
- 4
A power interruption left the lock engaged
What separates it The lock held through a power cut and did not release when power returned.
How to confirm Most machines re-evaluate and release after a full power cycle once they confirm the tub is empty and the drum is stopped. Many front-load machines also have a documented manual release — usually a small cord or tab behind the drain pump filter access door.
- 5
The lock assembly or its switch has failed
What separates it The tub is empty, the drum is stopped, the delay has passed, power has been cycled, and it still will not release.
How to confirm This is the conclusion once every normal condition is satisfied, and is a service repair.
Before you touch a setting
Record this first — changing settings destroys the evidence
Every item below stops existing the moment a reset, re-pair or settings change is made. Written down first, they are what separates the causes above; recovered afterwards, they are guesswork.
- Whether water is still visible in the tub — that alone explains most locked doors and has to be resolved first.
- Whether the drum is still moving.
- How long the door has been locked relative to the manual's stated release delay.
- Whether a power interruption occurred during the cycle.
Run Drain/Spin and allow it to complete
ReversibleThe lock will not release while water remains in the tub.
Wait the full documented release delay after the drum stops
ReversibleOne to three minutes is normal on many machines and is not a fault.
Power cycle the machine once
ReversibleThis lets the control re-evaluate the lock condition after a power interruption.
Use the documented manual release if the machine has one
ReversibleOn many front-load washers this is a small cord or tab behind the drain pump filter access door — check the manual for its location and correct use.
Arrange service once every normal release condition is satisfied
ReversibleA lock that holds with an empty, stopped, power-cycled machine has failed.
Model-specific
What is true of this model and not of its siblings
Generic advice for the product line fails here. Each item below is a property of this specific model family that changes which of the steps above apply to you.
- Model scope
- WKEX300H*. WashTower model with center controls; confirm washer versus dryer status.
- Type — WashTower: stacked washer + dryer, one control panel
- A larger-capacity WashTower with the washer below, dryer above, and ONE shared center control panel. As with any WashTower, a control/power fault can affect both halves together, and a centrally shown code may belong to either section — determine washer-versus-dryer first.
- Motor — Direct Drive inverter (no belt)
- Belt-less Direct Drive inverter washer motor; noise/vibration is bearings and balance, not a belt.
- Smart
- ThinQ Wi-Fi with AI-sensing. Washer front-load gasket care for odour; the dryer needs normal lint/vent maintenance.
- Symptom boundary
- This record covers LG WashTower WKEX300H washer section when it door or lid will not unlock. A different symptom on the same hardware, or this symptom on a different LG product line, has its own record with its own causes and its own cited source.
Stop boundary
When this stops being a self-service repair
Continuing past any one of these costs more than the repair saves — in safety, in warranty, or in evidence a technician needs.
- !Never force a locked door or lid while water, heat or drum motion is present — forcing damages the latch and, on a front-load machine, can release a tub full of water.
- !If a child or pet is inside the machine, treat it as an emergency and call emergency services rather than working through the normal release sequence.
Evidence ledger
Sources behind this answer
Visible sources support the visible claims. Home Product Support records the publisher, the fact used and the review date; community reports can suggest an issue but do not become a published fact on their own.
Where the manufacturer's article stops. LG publishes this as "Troubleshooting A Front Load Washing Machine Locked Door". A door that stays locked and will not release after or during a cycle. What that article does not carry is the model boundary — it is written for a product line, and WKEX300H* is the scope applied here. Where a control label, terminal, indicator pattern or reset sequence differs on your unit, the manual for that exact model is the authority, not this page and not the article.
Exact questions
Common follow-ups
How do I tell if it's the washer or dryer at fault on my LG WashTower?+
Because the WashTower shares one control panel, note which drum the problem is in and which controls respond. Run each half on its own: start a short wash and, separately, a short dry, and watch which one shows the error or fails to start. A code on the shared display often has a washer or dryer prefix in the manual. Isolating the section first stops you troubleshooting the wrong machine.
The cycle ended but the door still won't open.+
Check for water in the tub first — a front-load door will not unlock while water is present, because the level sits above the door opening. If the tub is empty, wait the full release delay, which is one to three minutes on many machines.
The power went out mid-cycle and now the door is stuck.+
Power cycle the machine once so the control can re-evaluate. If it still holds, most front-load washers have a documented manual release — usually a small cord or tab behind the drain pump filter access door at the bottom front. Check the manual for its exact location before pulling anything.
Does this answer apply to every LG model?+
No. It is scoped to WKEX300H*. WashTower model with center controls; confirm washer versus dryer status.
What should I record before troubleshooting door locked or lid locked or won't open?+
Record the complete model identifier, exact message or indicator, software/firmware where visible, the operating stage and what still works.
Why is a factory reset not the first step?+
A reset can erase accounts, networks, maps, schedules or preferences without distinguishing door locked, lid locked, won't open. The ordered checks preserve that evidence.
When should I stop and use qualified service?+
Never force a locked door with water, heat or a moving basket inside.
Answer for the exact device and software version shown above.